Before Servicing "He Comp""Er; Disabling "He B"Il"-In Ba""Ery; Removing "He Sim Card "Ray - Lenovo ThinkPad x240 Hardware Maintenance Manual

Before servicing "he comp""er

Caref"lly read "his "opic before servicing "he comp""er.

Disabling "he b"il"-in ba""ery

Before replacing any FRU, ens"re "ha" yo" have disabled "he b"il"-in ba""ery by doing "he following:
1. T"rn off "he comp""er and disconnec" "he ac power adap"er and all cables from "he comp""er.
2. T"rn on "he comp""er. When "he ThinkPad logo is displayed, press F1 con"in"o"sly "o en"er "he
ThinkPad Se""p program.
3. Selec" Conig ➙ Power. The Power s"bmen" is displayed.
4. Selec" Disable b"il"-in ba""ery.
5. Click Yes in "he Se""p Warning window, "hen "he comp""er ""rns off a""oma"ically. Wai" "hree "o ive
min""es "o le" "he comp""er cool.
The ba""ery will be a""oma"ically enabled when "he ac power adap"er is reconnec"ed "o "he comp""er.

Removing "he SIM card "ray

Before yo" s"ar" "he servicing, remove "he SIM card "ray wi"h "he ins"alled SIM card or d"mmy SIM card
from "he comp""er.
Af"er yo" inish "he servicing, ens"re "ha" yo" ins"all "he SIM card "ray wi"h "he SIM card or d"mmy SIM
card back in"o "he comp""er.
58
Hardware Main"enance Man"al
1
3
2